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35 Cards in this Set

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What is the fifth stage in odontogenesis

apposition

growth by layers

apposition

involves thephysiological processes of induction and proliferation

appositional stage

the enamel, dentin, and cementum aresecreted in successive layers during what progess

apposition

an extracellular substance that ispartially calcified yet serves as a framework for later calcification

matrix

What is the sixth and final stage of odontogenisis

maturation

what occurs when the dental tissues subsequently fully mineralize
maturation

Tooth development begins in the _____ and then proceeds to the_________.

Crown & Root

After the formation of the IEE in thebell-shaped enamel organ, the cells differentiate into
preameloblasts
During differentiation of enamel organ cells into preameloblasts, the nucleusof each cell moves away for the center to the position farthest away from thebasement membrane. This movement occursduring _______ ___________?
cellular repolarization

moving away from the basement membrane

repolarization

odontoblasts begin what

dentinogenisis

secreting predentin

dentinogenisis

apposition involves which two physiological processes

induction and proliferation

During apposition what is secreted in successive layers?

enamel, dentin, & cementum

enamel, dentin, and and cementum are initially secreted as

matrix

The sixth stage of odontogenesis involves which physiological process?

maturation

After the IEE differentiates into preameloblasts during the maturation stage of odontogenesis what happens?

the outer cells of the dental papilla are induced by the preameloblasts to differentiate into odontoblasts

what takes place due to odontoblasts undergoing repolarization in the maturation stage of odontogenesis?

their nuclei move from the center to a position that is farthest from the basement membrane

after odontoblasts undergo repolarization what happens?

the odontoblasts nuclei line up in mirror image to the preameloblasts location on the other side of the basement membrane.

after the odontoblasts nuclei line up in mirror image to the preameloblasts location on the other side of the basement membrane

the odontoblasts begin dentinogenesis

apposition of dentin matrix on their side of the basement membrane

dentinogenesis

dentin matrix

predentin

when do odontoblasts begin dentinogenesis?

after the odontoblasts nuclei line up in mirror image to the preameloblasts location on the other side of the basement membrane

even though the preameloblasts forms first

the odontoblasts start their secretions first.

After differentiation of odontoblasts and the formation of predintin

the basement membrane between the preameloblasts and odontoblasts begins to disintegrate

when the basement membrane between the preameloblasts and odontoblasts begins to disintegrate it allows what to happen?

preameloblasts to become in contact with the newly formed predentin

when the preameloblasts contact newly formed dentin it induces what

the preameloblasts to differentiate into ameloblasts.

apposition of enamel matrix

amelogenesis

the enamel matrix is secreted from

Tomes' Process

a tapered portion of each ameloblast that faces the disintegrating basement membrane

Tomes' Process

WIth the enamel matrix in contact with the predentin what occurs?

mineralization of the disintegrating basement membrane takes place

when the mineralization of the disintegrating basement membrane takes place due to the enamel matrix and predentin coming in contact with each other what is formed

the dentinoenamel junction (DEJ)

attached cellular extensions in the length of the predentin

odontoblastic process

odontoblastic process is contained in a mineralized cylinder called

dental tubule